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How are stars grouped?
Stars are grouped together in galaxies. A galaxy is a large group of stars held together by gravity.


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Spiral Galaxy

A spiral galaxy like the picture above is tightly or loosy wound. It has a lot of dust.




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Elliptical Galaxy


An elliptical galaxy is football or basketball shaped - it has no spirals and has little or no dust.


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Irregular Galaxy


An irregular galaxy does not have any recognizable shape. This type of galaxy may have been in a collision with another galaxy.

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Milky Way


We are in the Milky Way galaxy